/* * Copyright (C) 2020 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "MarkedJSValueRefArray.h" #include "JSCJSValue.h" namespace JSC { MarkedJSValueRefArray::MarkedJSValueRefArray(JSGlobalContextRef context, unsigned size) : m_size(size) { if (m_size > MarkedArgumentBuffer::inlineCapacity) { m_buffer = BufferUniquePtr::create(m_size); toJS(context)->vm().heap.addMarkedJSValueRefArray(this); ASSERT(isOnList()); } } MarkedJSValueRefArray::~MarkedJSValueRefArray() { if (isOnList()) remove(); } void MarkedJSValueRefArray::visitAggregate(SlotVisitor& visitor) { JSValueRef* buffer = data(); for (unsigned index = 0; index < m_size; ++index) { JSValueRef value = buffer[index]; #if !CPU(ADDRESS64) JSCell* jsCell = reinterpret_cast<JSCell*>(const_cast<OpaqueJSValue*>(value)); if (!jsCell) continue; visitor.appendUnbarriered(jsCell); // We should mark the wrapper itself to keep JSValueRef live. #else visitor.appendUnbarriered(bitwise_cast<JSValue>(value)); #endif } } } // namespace JSC